Very cute game! It was a bit confusing with the 3d vs 2d aspect - like when the rain falls - is it Y or Z plane? Logically Z, but within game logic - Y. I'd suggest replacing it with a hose or something where the water travels Y plane in terms of logic :)
Also tbh - I'm not sure running instead of clicking is a good idea, it felt a bit like a shore, more than a clicker would... But raising a creature in many ways feels like a shore, so maybe that's a good idea to show that :)